Originally Posted by
wiiztec
7.5lbs is what it says on the dual sport's page it says 38lbs on the sidewinder's page
Basically we have now established that the info on the site is indeed in error and that your own rudimentary observation yielded a weight of 30-35 pounds for the Dual Sport.
As to the root question of whether the Dual Sport will allow you to go faster than the Sidewinder? Most likely. Will it be a significant increase? Too many variables for me to hazard a guess.